Look back: Monster twister hits Moore, Okla.

Tuesday marks one year since an EF5 tornado ravaged Moore, Okla., on May 20, 2013, killing 24 people -- including seven students at Plaza Towers Elementary school. Take a look back at images from the storm.

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Jeff Kepnes/CNN

Tuesday marks one year since an EF5 tornado ravaged Moore, Okla., on May 20, 2013, killing 24 people -- including seven students at Plaza Towers Elementary school. Take a look back at images from the storm and its immediate aftermath.